Grandstream GBX20

Quick Info:

  • 40 lines / 2 pages
  • up to 4 modules
  • up to 160 lines
  • 2 color LED’s
  • Graphic display

Compatible with:

  • Grandstream GRP2615
  • Grandstream GXV3350
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The GBX20 expansion module can be added to the GRP2615 Enterprise IP phone and the GXV3350 Video IP phone. The module provides 20 programmable extension keys and two arrow keys for page switching, allowing you to manage up to 40 extensions with easy viewing on a large 4.3″ LCD screen (272 x 480 pixels) feature-rich graphics. You can add up to four GBX20 expansion modules to your phone, supporting a total of 160 extensions.

Each extension key supports advanced call features:

  • BLA (bridged line appearance) or SCA (shared call appearance)
  • Standard BLF (busy lamp field) or Event List BLF
  • Call park and call pick-up
  • Call transfer and call forward.
  • Speed dial
  • Presence
  • Intercom
  • Conference

The GBX20 expansion module is the ideal call management solution for your office receptionist or offices with high call volumes, ensuring maximum productivity by allowing staff to monitor and dispatch multiple incoming calls efficiently.

The GBX20 expansion module is compatible with these IP phones:

  • Grandstream GRP2615
  • Grandstream GXV3350



Key Color Status

Green / Red

Line Status Keys

20 Keys

Lines per Module

40 Lines / 2 Pages

Max Lines

160 Lines

Daisy-chainable Modules

4 Modules

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฿12,900.00 for 2 item(s)